2026 MACK GR64B - 70090














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Dealer Notes
The 2026 Mack GR64B Roll-Off is purpose-built to handle the toughest waste, recycling, demolition, and construction hauling applications with exceptional strength and reliability. Powered by a 425 HP Mack MP7 engine paired with a smooth-shifting Allison 4500 RDS 6-speed automatic transmission, this truck delivers outstanding performance under heavy loads. Its 251" wheelbase, 20,000-lb front axle, 46,000-lb rear axle, and rugged Mack Camelback SS46 multileaf suspension provide the durability and stability demanded by demanding job sites. Equipped with a Galbreath 75,000-lb outside rail hoist, Pioneer rack-and-pinion hydraulic auto tarper with hydraulic gantry, integrated 5-spool hydraulic valve system, and Huck bolt-mounted body, this roll-off is built for maximum productivity and long service life. Additional premium features—including LED lighting throughout, a heavy-duty pintle hitch-ready rear bumper, 48" steel toolbox, steel or poly fenders, rear container ratchet hold-downs, and convenient inside air controls—make this truck a dependable, operator-friendly solution ready to tackle the most demanding hauling operations.
Info
Industry
Truck
Make
MACK
Model
GR64B
Trim
Base
Year
2026
Price
277433
Stock Number
70090
Category
Truck
Subcategory
ROLLOFF
Condition
New
Location
San Antonio
VIN
1M2GR2GC0TM053340
Odometer
1830
Axles
Tandem
Specifications
Body Manufacturer
River City Hyd Rolloff
Engine Make
MACK
Engine Model
MP7
Front Axle
20000
GVW
66000
Engine Horsepower
425
Rear Axle
46000
Rear Ratio
3.98
Rear Suspension
SS46 MACK CAMELBACK MULTILEAF 46000 LB STANDARD DUTY
Transmission Make
Allison
Transmission Model
4500 RDS
Transmission Speed
6
Transmission Type
AUTOMATIC
Transmission Notes
4500 RDS 6 SPEED ALLISON GEN 6 W/PROGNOSTICS WITH PTO PROVISION
Wheelbase
251

